Pfs_nn_coord

/* $Id: pfs_nn_coord.x 420 2011-09-26 21:03:14Z gerd $ -*- -c -*- */

Coordination

Find the coordinator.

One of the name nodes is elected to be the coordinator at cluster
startup time. Right now, all namenode requests have to go to the
coordinator. (In the future, the other namenodes may be allowed to
respond to certain read requests.)